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    • 1. 发明申请
    • Sigma Delta Current Source and LED Driver
    • Sigma Delta电流源和LED驱动器
    • US20100231132A1
    • 2010-09-16
    • US12719655
    • 2010-03-08
    • Andrea LogiudiceGiorgio Chiozzi
    • Andrea LogiudiceGiorgio Chiozzi
    • H05B37/02
    • H05B33/083H05B33/0818H05B33/0827Y02B20/347
    • A circuit arrangement includes a first light emitting diode and a second light emitting diode emitting light of different colors arranged adjacent to each other for additive color mixing. A first and second controllable current sources are connected to the first and second light emitting diode, respectively, such that the load currents of the light emitting diodes depend on respective control signals received by the current sources. First and second sigma-delta modulators are connected to the first and second light emitting diodes, respectively, and provide bit-streams as control signals to the current sources. The mean value of each bit-stream corresponds to the value of an input signal of the respective sigma-delta modulator.
    • 电路装置包括第一发光二极管和第二发光二极管,发射彼此相邻布置的不同颜色的光用于加色混合。 第一和第二可控电流源分别连接到第一和第二发光二极管,使得发光二极管的负载电流取决于由电流源接收的各个控制信号。 第一和第二Σ-Δ调制器分别连接到第一和第二发光二极管,并且提供位流作为当前源的控制信号。 每个比特流的平均值对应于相应的Σ-Δ调制器的输入信号的值。
    • 2. 发明授权
    • Regulating system
    • 调节系统
    • US07012410B2
    • 2006-03-14
    • US10948112
    • 2004-09-23
    • Emanuele BodanoGiorgio ChiozziAndrea LogiudiceSalvatore Piccolella
    • Emanuele BodanoGiorgio ChiozziAndrea LogiudiceSalvatore Piccolella
    • G05F1/618
    • G05F1/575
    • A regulating system comprises an input terminal for applying an input voltage, and an output terminal for providing an output voltage. A semiconductor element is connected between the input terminal and the output terminal and is operable to regulate the output voltage. A regulating signal generation circuit generates the regulating signal and comprises a current mirror arrangement including a first and second current mirror path, wherein a controlled current source is connected in series to the first current mirror path. The controlled current source induces a first current dependent on one of the output signals in the first current mirror path. A second current through the second current mirror path is dependent on the first current. A splitter circuit conducts the second current to the output terminal or to a reference potential, dependent on a load path voltage applied over the load path of the semiconductor element.
    • 调节系统包括用于施加输入电压的输入端子和用于提供输出电压的输出端子。 半导体元件连接在输入端子和输出端子之间,并且可操作以调节输出电压。 调节信号产生电路产生调节信号,并且包括包括第一和第二电流镜路径的电流镜装置,其中受控电流源与第一电流镜路径串联连接。 受控电流源引起取决于第一电流镜像路径中的一个输出信号的第一电流。 通过第二电流镜像路径的第二电流取决于第一电流。 取决于施加在半导体元件的负载路径上的负载路径电压,分路器电路将第二电流传导到输出端或参考电位。
    • 3. 发明申请
    • Regulating system
    • 调节系统
    • US20050099169A1
    • 2005-05-12
    • US10948112
    • 2004-09-23
    • Emanuele BodanoGiorgio ChiozziAndrea LogiudiceSalvatore Piccolella
    • Emanuele BodanoGiorgio ChiozziAndrea LogiudiceSalvatore Piccolella
    • G05F1/575H03F3/04
    • G05F1/575
    • A regulating system comprising: an input terminal (K10) for applying an input voltage (Vin), an output terminal (K20) for providing an output voltage (Vout) and an output current (Iout), a semiconductor element (Q1) regulating the output voltage (Vout), which element has a load path which is connected between the input terminal (K1) and the output terminal (K2), and a control input to which a regulating signal (Ib1) is applied, a regulating signal generation circuit to generate the regulating signal (Ib1), which circuit has a current mirror arrangement (Q2, Q3) including a first and second current mirror path, wherein a controlled current source (Q4) is connected in series to the first current mirror path, which source induces a first current dependent on one of the output signals (Vout) in the first current mirror path, and wherein a second current (I2) through the second current mirror path is dependent on the first current (I1), a splitter circuit (20) which conducts the second current (I2) to the output terminal (K2) or to a reference potential (GND), dependent on a load path voltage (Vec1) applied over the load path of the semiconductor element (Q1).
    • 一种调节系统,包括:用于施加输入电压(Vin)的输入端子(K 10),用于提供输出电压(Vout)和输出电流(Iout)的输出端子(K 20),半导体元件 )调节输出电压(Vout),该元件具有连接在输入端子(K 1)和输出端子(K 2)之间的负载路径以及施加调节信号(Ib 1)的控制输入端 ,用于产生调节信号(Ib 1)的调节信号发生电路,该电路具有包括第一和第二电流镜通路的电流镜布置(Q 2,Q 3),其中控制电流源(Q 4)被连接 与第一电流镜像路径串联,该源引起取决于第一电流镜像路径中的一个输出信号(Vout)的第一电流,并且其中通过第二电流镜像路径的第二电流(I 2)取决于 第一电流(I 1),分离器电路(20) h根据施加在半导体元件(Q1)的负载路径上的负载路径电压(Vec 1),将第二电流(I 2)传导到输出端子(K 2)或参考电位(GND)。
    • 5. 发明授权
    • Sensor of the instant power dissipated in a power transistor
    • 在功率晶体管中消耗的瞬时功率的传感器
    • US5917382A
    • 1999-06-29
    • US739328
    • 1996-10-30
    • Giorgio Chiozzi
    • Giorgio Chiozzi
    • H03F1/52
    • H03F1/523
    • A sensor of instantaneous power which is dissipated through a power transistor of the MOS type connected between the output terminal of a power stage and ground. It comprises a MOS transistor having its gate terminal connected to that of the power transistor, source terminal connected to ground, and drain terminal connected to a circuit node which is coupled to the output terminal by means of a current mirror circuit which includes a resistive element in its input leg. Connected to the circuit node is the base terminal of a bipolar transistor which is respectively connected, through a diode and a constant current generator between the output terminal and ground.
    • 瞬时功率传感器,通过连接在功率级的输出端子和地之间的MOS型功率晶体管而消耗。 它包括MOS晶体管,其栅极端子连接到功率晶体管的栅极端子,源极端子连接到地,而漏极端子连接到电路节点,该电路节点通过电流镜电路耦合到输出端子,电流镜电路包括电阻元件 在其输入腿。 连接到电路节点的是双极晶体管的基极端子,分别通过二极管和输出端子和地之间的恒流发生器连接。
    • 10. 发明授权
    • Voltage regulator with adjustable output impedance
    • 稳压器,输出阻抗可调
    • US07023191B2
    • 2006-04-04
    • US10804860
    • 2004-03-19
    • Giuseppe BernacchiaGiorgio ChiozziMaurizio Galvano
    • Giuseppe BernacchiaGiorgio ChiozziMaurizio Galvano
    • G05F1/40
    • H02M3/1588H02M2001/0009Y02B70/1466
    • The invention relates to a voltage regulator having an output terminal (AK) for the provision of an output voltage and connection of a load, an output capacitor (20) connected to the output terminal and having an equivalent series resistance (ESR), a converter unit (10) having supply voltage terminals for the application of a supply voltage (Vcc), an output coupled to the output terminal (AK), a feedback signal input for feeding in a feedback signal (Vfb) dependent on the output voltage, a reference signal input for feeding in a reference signal (Vref), and a comparator unit (TA3), which provides a differential signal (Iea) from the reference signal (Vref) and the feedback signal (Vfb), in which case the converter unit (10) provides an output current (Iout), the mean value of which is proportional to the differential signal (Iea), the proportionality factor between this difference and the output current (Iout) being set by means of a control signal at a control input of the converter unit (10) in such a way that it is proportional to the reciprocal of the equivalent series resistance (ESR) of the output capacitor.
    • 本发明涉及一种具有用于提供输出电压和负载连接的输出端子(AK),连接到输出端子并具有等效串联电阻(ESR)的输出电容器(20)的电压调节器,转换器 具有用于施加电源电压(Vcc)的电源电压端子的单元(10),耦合到输出端子(AK)的输出端,用于馈送取决于输出电压的反馈信号(Vfb)的反馈信号输入端 用于馈送参考信号(Vref)的参考信号输入和从参考信号(Vref)和反馈信号(Vfb)提供差分信号(Iea)的比较器单元(TA 3),在这种情况下转换器 单元(10)提供其平均值与差分信号(Iea)成比例的输出电流(Iout),该差值与输出电流(Iout)之间的比例因子通过在 控制输入​​的控制 转换器单元(10)以与输出电容器的等效串联电阻(ESR)的倒数成比例的方式。